Waste gas purification and waste heat recovery equipment for annealing furnace
By designing a cleaning section and a filter box vibration pressing mechanism, the problem of blockage caused by the accumulation of impurities inside the filter box is solved, achieving efficient purification of waste gas and waste heat recovery, and improving the operating efficiency and lifespan of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-03-24
AI Technical Summary
In existing technologies, a large amount of particulate matter and impurities accumulate inside the filter box, causing blockage and affecting the filtration effect. Cleaning only the surface of the filter box cannot effectively remove internal impurities.
An annealing kiln exhaust gas purification and waste heat recovery device was designed. The filter box can be easily opened by the mounting plate of the cleaning section, the box cover can be removed and the inside of the filter box can be cleaned. Combined with the vibration and pressing mechanism of the filter box, the internal particulate matter and impurities are removed, and the heat energy in the exhaust gas is recovered through heat exchange.
It effectively reduces filter box clogging, improves filtration efficiency, achieves efficient purification of waste gas and waste heat recovery, and extends the service life of the equipment.
Smart Images
Figure CN224034406U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to waste gas recovery technical field especially relates to annealing furnace waste gas purification waste heat recovery equipment. BACKGROUND
[0002] The waste gas purification waste heat recovery utilization equipment of annealing furnace is important energy-saving and environmental protection equipment in the production process, which can not only reduce the pollution of waste gas to the environment, but also effectively recover waste heat and improve energy utilization efficiency. The waste gas purification equipment is mainly used for treating the waste gas discharged by the annealing furnace to reduce its pollution to the environment. During the waste gas purification process, the waste gas is first filtered by a gas filter, and the filtered waste gas needs to be treated by a filtering device such as a dust collector or a bag filter to remove particulate matter and other impurities.
[0003] Particulate matter and other impurities not only affect the operating efficiency of the waste heat recovery equipment, but also may damage the equipment and shorten its service life. The filtered waste gas is purer and is beneficial to the subsequent heat recovery process. In the prior art, a large amount of particulate matter and impurities accumulate inside the filter box, causing the filter box to be blocked and affecting the filtering effect. Only the surface of the filter box is cleaned, and the particulate matter and impurities inside the filter box cannot be cleaned. SUMMARY
[0004] In order to overcome the problem that a large amount of particulate matter and impurities accumulate inside the filter box in the prior art, causing the filter box to be blocked and affecting the filtering effect, only the surface of the filter box is cleaned, and the particulate matter and impurities inside the filter box cannot be cleaned.
[0005] The technical scheme of the utility model is as follows: an annealing furnace waste gas purification waste heat recovery equipment, comprising a waste heat recovery tank, a filter box is arranged on the left side of the top of the waste heat recovery tank, a purification tank is arranged on the right side of the top of the waste heat recovery tank, a conveying pump body is arranged between the filter box and the purification tank on the top of the waste heat recovery tank, the left side of the conveying pump body is connected with the filter box through a pipeline one, the right side of the conveying pump body is connected with the purification tank through a pipeline two, a cleaning part is arranged on the filter box, the cleaning part comprises a mounting plate, a connection port one is arranged on the left side of the mounting plate, the connection port one can be connected with the exhaust end of the annealing furnace, a connection port two is arranged on the right side of the mounting plate, the mounting plate is detachably mounted on the side wall on the left side of the filter box to close the inside of the filter box, a filter box is arranged in the inside of the filter box, a tank cover is mounted on the left side of the filter box, a connection port three is arranged on the tank cover, the tank cover can be detached from the filter box, and the purification tank is connected with the waste heat recovery tank through a connecting pipeline.
[0006] As a preferred, a movement groove is arranged on the side wall in the filter box, a sliding block corresponding to the movement groove is arranged on the side wall of the filter box, and the filter box can move up and down in the filter box.
[0007] As preferred, the bottom of the filter box is provided with a limiting post, the bottom of the filter box is provided with an upward protruding limiting block, the top of the limiting block is provided with a movable hole corresponding to the limiting post, the outer diameter of the limiting post is sleeved with a spring, the top of the spring is in contact with the bottom of the filter box, and the bottom of the spring is in contact with the top of the limiting block.
[0008] As preferred, the connecting port two and the connecting port three are connected through a hose, and the hose is sleeved with a hoop at the position in contact with the connecting port two and the connecting port three.
[0009] As preferred, the left and right sides of the filter box are provided with rotating rotating shafts, the outer diameter of the rotating shafts is sleeved with a cam, the cam can be in contact with the top of the filter box, and the top of the filter box is provided with a filter hole.
[0010] As preferred, the outer wall of the filter box is provided with a driving motor at the position corresponding to the rotating shaft, the inner wall of the filter box is provided with a positioning ring, and the rotating shaft can be arranged in the positioning ring.
[0011] As preferred, the pipeline two can be arranged in the purification box, a plug is arranged at one end of the pipeline two in the purification box, an air pipe is arranged on the side, away from the filter box, of the plug, the purification box can contain purification liquid, and one end of the air pipe, away from the plug, is arranged in the purification liquid.
[0012] The beneficial effects of the utility model are as follows: compared with the method of scraping off the particulate matters and impurities from the surface of the filter box, the filter box can be opened conveniently through the installation plate of the cleaning part, the box cover can be disassembled through the disassembly of the installation plate, the inside of the filter box can be cleaned conveniently, the blockage caused by long-term use of the filter box is reduced, the waste heat recovery box can absorb the gas discharged from the purification box to exchange heat, the gas is oxidized to transform into heat energy, and the heat energy is recovered through the subsequent heat storage device. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a whole structure schematic view of the utility model;
[0014] Figure 2 It is a motion groove structure schematic view of the utility model;
[0015] Figure 3 It is a box cover structure schematic view of the utility model;
[0016] Figure 4 It is a sliding block structure schematic view of the utility model;
[0017] Figure 5 It is an air pipe structure schematic view of the utility model.
[0018] Explanation of reference signs: 1, filter box; 11, mounting plate; 111, connection port one; 112, connection port two; 13, drive motor; 131, rotating shaft; 132, cam; 14, movement groove; 15, positioning ring; 2, purification box; 3, waste heat recovery box; 4, conveying pump body; 41, pipeline one; 42, pipeline two; 5, connecting pipeline; 6, filter box; 61, box cover; 611, connection port three; 62, filter hole; 63, sliding block; 64, limiting column; 65, limiting block; 66, spring; 71, plug; 72, air pipe. DETAILED DESCRIPTION
[0019] The utility model is further explained below in combination with the drawings and examples.
[0020] Please refer to Figure 1 - Figure 5 The utility model provides an example: annealing furnace waste gas purification waste heat recovery equipment, including waste heat recovery box 3, the left side of waste heat recovery box 3 top is equipped with filter box 1, the right side of waste heat recovery box 3 top is equipped with purification box 2, is equipped with conveying pump body 4 between filter box 1, purification box 2 at the top of waste heat recovery box 3, the left side of conveying pump body 4 is connected with filter box 1 through pipeline one 41, the right side of conveying pump body 4 is connected with purification box 2 through pipeline two 42, is equipped with cleaning part on filter box 1, and the cleaning part includes mounting plate 11, and the left side of mounting plate 11 is equipped with connection port one 111, and connection port one 111 can be connected with the exhaust end of annealing furnace, and the right side of mounting plate 11 is equipped with connection port two 112, and mounting plate 11 is detachably installed on the side wall of filter box 1 left side and is closed to filter box 1 inside, and filter box 1 inside is equipped with filter box 6, and the left side of filter box 6 is installed with box cover 61, and box cover 61 is equipped with connection port three 611, and box cover 61 can be detached from filter box 6, and purification box 2 and waste heat recovery box 3 are connected through connecting pipeline 5, and the mounting plate 11 of cleaning part is convenient to open filter box 1, and the box cover 61 is detached through the detachment of mounting plate 11, and it is convenient to clean the inside of filter box 6, reduces the blockage caused by long-term use of filter box 6, and waste heat recovery box 3 can absorb the gas discharged in purification box 2 to exchange heat, and the gas is oxidized into heat energy, and then is recovered through subsequent heat storage device.
[0021] Please refer to Figure 1 - Figure 4In the embodiment, the side wall inside the filter box 1 is provided with a movement groove 14, the side wall of the filter box 6 is provided with a sliding block 63 corresponding to the movement groove 14, the filter box 6 can move up and down in the filter box 1, and the filter box 6 can vibrate up and down through the cooperation of the movement groove 14 and the sliding block 63, so that the particulate matter in the filter box 6 can be shaken down, the cleaning cycle of the filter box 6 is reduced, the bottom of the filter box 6 is provided with a limiting column 64, the bottom of the filter box 1 is provided with an upwardly protruding limiting block 65, the top of the limiting block 65 is provided with a movable hole corresponding to the limiting column 64, the outer diameter of the limiting column 64 is sleeved with a spring 66, the top of the spring 66 is in contact with the bottom of the filter box 6, the bottom of the spring 66 is in contact with the top of the limiting block 65, the movement track of the filter box 6 is further limited through the cooperation of the movable hole and the limiting column 64, the shaking of the filter box 6 is reduced, and the spring force of the spring 66 can support the filter box 6, so that the phenomenon that the filter box 6 cannot rebound is prevented, the connecting port two 112 and the connecting port three 611 are connected through a hose, the positions where the hose contacts the connecting port two 112 and the connecting port three 611 are sleeved with a clamp, the hose is more stably connected with the connecting port two 112 and the connecting port three 611 through the clamp, and the flexibility of the hose reduces the influence of the filter box 6 on the filter box 1 when the filter box 6 vibrates.
[0022] Please refer to Figure 2 Figure 5 In the embodiment, the left and right sides of the filter box 1 are provided with rotating rotating shafts 131, the outer diameters of the rotating shafts 131 are sleeved with cams 132, the cams 132 can contact the top of the filter box 6, the top of the filter box 6 is provided with a filter hole 62, the rotating shaft 131 drives the cam 132 to rotate, so that the cam 132 can press the filter box 6 downward, the filter box 6 is vibrated through rapid and uninterrupted impact and pressing, the cam 132 is provided with a countersunk hole, the rotating shaft 131 is provided with a threaded hole, a screw penetrating the countersunk hole can cooperate with the threaded hole, the filter box 1 is provided with a driving motor 13 at a position corresponding to the rotating shaft 131, the inner wall of the filter box 1 is provided with a positioning ring 15, the rotating shaft 131 can penetrate the positioning ring 15, the rotating shaft 131 is limited through the positioning ring 15, so that the rotating shaft 131 is prevented from falling, a bearing can be placed in the positioning ring 15, the rotating shaft 131 penetrates the inner diameter of the bearing, and the rotating resistance of the rotating shaft 131 is reduced, the pipeline two 42 can penetrate the purification box 2, the pipeline two 42 is provided with a plug 71 at one end corresponding to the purification box 2, the plug 71 is provided with an air pipe 72 away from the filter box 1, the purification box 2 can contain purification liquid, one end of the air pipe 72 away from the plug 71 is inserted into the purification liquid, the air pipe 72 is convenient for guiding the gas discharged from the pipeline two 42, one end of the air pipe 72 is inserted into the purification liquid, so that the gas is convenient for fully contacting the purification liquid, and the purification efficiency is increased.
[0023] In the process of working, the exhaust gas in the annealing furnace is conducted to the connecting port two 112 through the connecting port one 111 and the mounting plate 11, then is delivered to the connecting port three 611 through the hose connected with the connecting port two 112, and finally enters the filter box 6. The filter box 6 is vibrated by the rapid pressing of the cam 132, so as to reduce the blockage of the filter holes 62 by the particulate matters and impurities in the exhaust gas. After the filter box 6 filters the particulate matters and impurities in the exhaust gas, the particulate matters and impurities overflow from the filter holes 62. Then, under the driving of the delivery pump body 4, the gas in the filter box 1 is pumped out, passes through the pipeline one 41 and the pipeline two 42, and enters the purification box 2. The pipeline two 42 is provided with a plug 71 at one end in the purification box 2. The plug 71 is provided with an air pipe 72 away from the filter box 1. The other gas discharged from the air pipe 72 enters the purification liquid in the purification box 2. The purification liquid purifies the gas. The purified gas is in the form of bubbles and is discharged from the purification liquid. Then, the gas enters the waste heat recovery box 3 through the connecting pipeline 5. The gas in the waste heat recovery box 3 is oxidized, and heat is released through the heat exchange principle. Finally, the heat is transferred to the medium such as air or water that needs to be heated, so as to realize the recycling of waste heat. The purification liquid used here is water or alkali liquid. The driving motor 13, the delivery pump body 4 and the related electric control wiring are remote prior art, and their working principles are not described here.
[0024] Through the above steps, the mounting plate 11 of the cleaning part facilitates the opening of the filter box 1. The box cover 61 is disassembled through the disassembly of the mounting plate 11, so as to clean the inside of the filter box 6 and reduce the blockage caused by the long-term use of the filter box 6. The waste heat recovery box 3 can absorb the gas discharged from the purification box 2 to exchange heat, oxidize the gas into heat energy, and then recycle the heat energy through the subsequent heat storage device. Thus, the problem that the inside of the filter box 6 accumulates a large amount of particulate matters and impurities, causing the blockage of the filter box 6 and affecting the filtering effect, and the particulate matters and impurities in the inside of the filter box 6 cannot be cleaned by only cleaning the surface of the filter box 6 is solved.
Claims
1. The waste heat recovery equipment for waste gas purification of annealing furnace, characterized in that: The utility model provides a waste heat recovery tank (3), waste heat recovery tank (3) top left side is equipped with filter tank (1), waste heat recovery tank (3) top right side is equipped with purification tank (2), is equipped with conveying pump body (4) between filter tank (1), purification tank (2) at waste heat recovery tank (3) top, the left side of conveying pump body (4) is connected with filter tank (1) through pipeline one (41), the right side of conveying pump body (4) is connected with purification tank (2) through pipeline two (42), is equipped with cleaning part on filter tank (1), cleaning part includes mounting plate (11), mounting plate (11) left side is equipped with connection port one (111), connection port one (111) can be connected with the exhaust end of annealing furnace, the right side of mounting plate (11) is equipped with connection port two (112), mounting plate (11) can be detachably installed on the left side wall of filter tank (1) and is closed to filter tank (1) inside, filter tank (1) inside is equipped with filter box (6), filter box (6) left side is installed with tank cover (61), is equipped with connection port three (611) on tank cover (61), tank cover (61) can be detached from filter box (6), purification tank (2) is connected with waste heat recovery tank (3) through connecting pipeline (5).
2. The annealing furnace off-gas purification waste heat recovery apparatus according to claim 1, characterized by: The side wall of the filter tank (1) is provided with a movement groove (14), and the side wall of the filter box (6) is provided with a sliding block (63) corresponding to the movement groove (14), and the filter box (6) can move up and down in the filter tank (1).
3. The annealing furnace off-gas purification waste heat recovery apparatus according to claim 2, characterized by: The bottom of the filter box (6) is provided with a limiting column (64), the bottom of the filter tank (1) is provided with an upwardly protruding limiting block (65), the top of the limiting block (65) is provided with a movable hole corresponding to the limiting column (64), the limiting column (64) is sleeved with a spring (66) at the outer diameter, the top of the spring (66) is in contact with the bottom of the filter box (6), and the bottom of the spring (66) is in contact with the top of the limiting block (65).
4. The annealing furnace off-gas purification waste heat recovery apparatus according to claim 3, characterized by: The connection port two (112) and the connection port three (611) are connected by a hose, and the hose is sleeved with a clamp at the position in contact with the connection port two (112) and the connection port three (611).
5. The annealing furnace off-gas purification waste heat recovery apparatus according to claim 4, characterized by: The left and right sides of the filter tank (1) are provided with rotating rotating shafts (131), the rotating shafts (131) are sleeved with cams (132) at the outer diameters, the cams (132) can contact the top of the filter box (6), and the top of the filter box (6) is provided with a filter hole (62).
6. The annealing furnace off-gas purification waste heat recovery apparatus according to claim 5, characterized by: The outer wall of the filter tank (1) is provided with a driving motor (13) corresponding to the position of the rotating shaft (131), and the inner wall of the filter tank (1) is provided with a positioning ring (15), and the rotating shaft (131) can pass through the positioning ring (15).
7. The annealing furnace off-gas purification waste heat recovery apparatus according to claim 6, characterized by: The pipeline two (42) can pass through the purification tank (2), and the pipeline two (42) is inserted with a plug (71) at one end corresponding to the purification tank (2), the plug (71) is provided with an air pipe (72) away from the filter tank (1), the purification tank (2) can contain purification liquid, and the air pipe (72) is inserted into the purification liquid away from the plug (71).